公开(公告)号：US20200210542A1

公开(公告)日：2020-07-02

申请号：US16235424

申请日：2018-12-28

Applicant: Dassault Systemes Simulia Corp.

Inventor： Dan Cojocaru ,  James Christopher Wohlever ,  Tod Olan Dalrymple

IPC: G06F17/50 ,  G06F3/0484

Abstract: A computer simulation system is configured to display to a user a graphical user interface to allow the user to import experimental test data, identify a material model that includes one or more parameters to be calibrated during a material model calibration process, perform an iterative optimization process to calibrate the material model, the iterative optimization process uses an optimization algorithm that enforces a constraint based on Drucker's stability criterion across one or more predetermined strain ranges to generate a calibrated material model, assign the calibrated material model to a component of a simulation model based on input from the user, a real-world equivalent of the component being made of the physical material, and perform a simulation that includes the component, the simulation using the stable material model and stable set of parameters to simulate response of the real-world equivalent during the simulation.

公开(公告)号：US20200210539A1

公开(公告)日：2020-07-02

申请号：US16236799

申请日：2018-12-31

Applicant: Dassault Systemes Simulia Corp.

Inventor： Hudong Chen ,  Raoyang Zhang ,  Pradeep Gopalakrishnan

IPC: G06F17/50 ,  G01P5/00 ,  G06N7/08

Abstract: Computer implemented techniques for simulating a fluid flow about a surface of a solid, include receiving a coordinate system for representation of a curvilinear mesh that conforms to the surface of the solid, simulating, with a lattice velocity set transport of particles in a volume of fluid, with the transport causing collision among the particles, executing a distribution function for transport of the particles, with the distribution function including a particle collision determination and a change in particle distribution associated with the curvilinear mesh, performing by the computing system, advection operations in the coordinate system under constraints applied to particle momentum values and mapping by the computer system values resulting from simulating onto the curvilinear mesh by translation of the particle momentum values and spatial coordinates determined in the coordinate system into momentum and spatial values in the curvilinear space.

公开(公告)号：US20200081604A1

公开(公告)日：2020-03-12

申请号：US16542048

申请日：2019-08-15

Applicant: Dassault Systemes

Inventor： Christophe Rene Francis Delfino ,  Guillaume Romain Dayde

IPC: G06F3/0481 ,  G06F3/0484 ,  G06T13/20

Abstract: A computer-based system and method generate a movement of a 3D part of a 3D assembly in a 3D scene. Movement of the 3D part represents rotation by a predetermined angle. The method a) displays a 3D assembly of 3D parts in the 3D scene; b) selects a 3D part of the 3D assembly; and c) displays in the 3D scene a 3D manipulator. The 3D manipulator comprises three axes, and is anchored to the 3D part at an anchor point. The method then d) drags the 3D manipulator along one axis by a current distance from the anchor point on the axis. The predetermined angle corresponds to a maximum distance from the anchor point. The method e) while dragging the 3D manipulator, computes a ratio of the current distance to the maximum distance, and f) generates the movement of the 3D part proportionally to the ratio.

公开(公告)号：US10550690B2

公开(公告)日：2020-02-04

申请号：US14277909

申请日：2014-05-15

Applicant: Dassault Systemes Simulia Corp.

Inventor： Bernd Crouse ,  Xiaobo Nie ,  Raoyang Zhang ,  Yong Li ,  Hiroshi Otomo ,  Hudong Chen ,  Andrew Fager ,  David M. Feed

IPC: E21B49/00 ,  G01V99/00 ,  G06F17/50

Abstract: This description relates to computer simulation of physical processes, such as computer simulation of multi-species flow through porous media including the determination/estimation of relative permeabilities for the multi-species flow through the porous media.

公开(公告)号：US10521516B2

公开(公告)日：2019-12-31

申请号：US14835304

申请日：2015-08-25

Applicant: DASSAULT SYSTEMES

Inventor： Jean-Francois Rameau

IPC: G06F17/50

Abstract: A method for designing a 3D modeled object can implement a modeling graph having nodes that represent geometrical objects and arcs that each represent a relationship, wherein procedural relationships are represented by unidirectional arcs, wherein the relationships linking the geometrical objects further include live relationships that are represented by bidirectional arcs, and wherein the provided modeling graph respects a criterion that all the arcs of each strong component of the modeling graph are bidirectional. Upon adding a relationship linking two of the geometrical objects that are included in the data defining the 3D modeled object before the addition, the method selects two geometrical objects to be linked by the relationship to be added, the selection being performed according to the criterion.

公开(公告)号：US10474763B2

公开(公告)日：2019-11-12

申请号：US13905009

申请日：2013-05-29

Applicant: Dassault Systemes

Inventor： Laurent Santiquet ,  Bertrand Faure

IPC: G06F17/50 ,  G06T19/20 ,  G06F3/0484

Abstract: A computer-aided design system and computer-implemented method define initial conditions for dynamic simulation of an assembly of objects in a three-dimensional scene of a computer-aided design. The system and method provide (S1) the assembly of objects with information relative to kinematic joints linking objects of the assembly. The system/method provide (S2) a manipulating tool (M) embedded in the scene; attach (S3) said manipulating tool (M) to one object of the assembly; select (S4) a degree of freedom of the manipulating tool (M) attached to the object of the assembly; and input (S5) at least one initial condition (IC) according to said selected degree of freedom, an initial condition comprising an initial position and/or an initial speed and/or an initial acceleration. The tool has a referential (reference) with three-axes allowing for each axis a degree of freedom in translation and a degree of freedom in rotation. Next the system and method calculate (S6) and display in real time the dynamic simulation taking into account the initial conditions (IC) previously defined.

公开(公告)号：US10437231B2

公开(公告)日：2019-10-08

申请号：US15386681

申请日：2016-12-21

Applicant: DASSAULT SYSTEMES

Inventor： Jeannine Panciatici

IPC: G05B19/4097 ,  B29C33/38 ,  B29C70/48 ,  G06F17/50

Abstract: The invention notably relates to a computer-implemented method for designing an outer surface of a composite part manufactured by molding a stack of material layers. The method comprises defining constant offset surfaces, a constant offset surface being a respective part of the outer surface which is to have a constant offset value relative to the reference surface, the constant offset value of a respective constant offset surface corresponding to the sum of the thicknesses of the material layers below the respective constant offset surface, and determining a final surface that corresponds to a tangent continuous connection of the constant offset surfaces. This provides an improved solution for designing an outer surface of a composite part.

公开(公告)号：US10387812B2

公开(公告)日：2019-08-20

申请号：US14959150

申请日：2015-12-04

Applicant: DASSAULT SYSTEMES

Inventor： Pierre-Edouard Cailliau ,  Vitalii Telerman ,  Auxkin Ortuzar Del Castillo

IPC: G06Q10/06

Abstract: It is provided a computer-implemented method for managing a task having a start datum and an end datum. The method comprises the step of providing specifications of the task, the specifications including a start range indicative of possible values for the start datum, an end range indicative of possible values for the end datum, and a schedule of the task, the schedule of the task including a scheduled start value for the start datum that belongs to the start range and a scheduled end value for the end datum that belongs to the end range. The method also comprises the step of displaying, on a timeline, bar charts representative of specifications of the task, including at least a bar chart representative of the schedule of the task. Such a method improves the management of a task.

公开(公告)号：US20190250580A1

公开(公告)日：2019-08-15

申请号：US16272971

申请日：2019-02-11

Applicant: DASSAULT SYSTEMES

Inventor： Pascal HEBRARD ,  Sebastien CETRE ,  Dominiqe COZ ,  Daniel PYZAK

IPC: G05B19/18 ,  G05B19/19 ,  G05B19/4093 ,  B23C3/36

Abstract: The embodiments relate to a method for designing a part manufacturable by milling operations. The method comprises providing a topologically optimized 3D modeled part, computing a bounding volume encompassing the topologically optimized 3D modeled part, defining a milling direction of a milling tool, computing a silhouette of the topologically optimized 3D modeled part according to the milling direction, the silhouette comprising a contour, and computing a new contour based on a parameter of the milling tool.

公开(公告)号：US10347040B2

公开(公告)日：2019-07-09

申请号：US15387189

申请日：2016-12-21

Applicant: DASSAULT SYSTEMES

Inventor： Malika Boulkenafed ,  Jean Julien Tuffreau

IPC: G06T17/00 ,  G06K9/62 ,  G06T1/60 ,  G06T15/50 ,  G06T19/20 ,  H04N19/426

Abstract: The invention notably relates to a computer-implemented method for displaying a 3D assembly of modeled objects. The method comprises streaming from a first computer to a second computer at least one raster image of a first 3D modeled object, and rendering on the second computer the 3D assembly of modeled objects by merging a second 3D modeled object with the streamed at least one raster image.